“tracking and observation”的概念、定义、翻译、参考文献-科学参考

单词	tracking and observation
释义	tracking and observation Encyclopedia 历史学博物馆公共服务释 tracking and observation观众行为观察法观察者根据研究需要，利用眼睛、耳朵等感觉器官和其他技术手段或仪器，有目的地对博物馆观众进行考察，获得有关观众行为的资料。
随便看	graded-polarizable graded projective dimension graded protection of wild plants graded [refractive] index graded refractive index graded ring graded R nodule graded R-nodule graded sheaf graded space graded submodule Graded Supplementary Readings for Primary School Students graded-tailings filling system graded technique grade inflation grade intersection grade location grade method gradeness of adjectives Gradenigo’s syndrome grade of hydraulic structure grade of uranium ore grade point system grader grade separation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。